Plane-guide.



w. T. WHITEWAY.

PLANE GUIDE. APPLICATION IILEi) DEC/.17, 1907.

949, 6 9 1 U Patented Feb. 15, 1910.

WZZ/Zamf Wit" cones WILLIAM '1. WHITEWAY, OF CAMBRIDGE, MASSACHUSETTS.

PLANEGUIDE.

Application filed December 17, 1907.

T 0 all whom it may concern:

Be it known that I, VVILLIAM T. 1min WAY, a citizen of the United Statesof America, residing at Cambridge, in the county of Suffolk and State ofMassachusetts, have invented new and useful Improvements in PlaneGuides,of which the following is a specification.

This invention relates to plane-guides, and one of the principal objectsof the same is to provide detachable and adjustable guides for planeswhich can be quickly adj usted and which will serve to hold the plane inalinement with the edge, of a board.

Another object is to provide a plane-guide which can be used as atry-square, side gage, or supplemental sole.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawing, in which 2- Figure 1 is aperspective view of a metal jackplane of ordinary construction havingtwo guides secured to one side thereof. Fig. 2 is a longitudinal sectionthrough one of the guides and the guideway and keeper for said guide.

Referring to the drawing for a more specific description of myinvent-ion, the numeral 1 designates a plane which may be of anysuitable construction and preferably provided with a side member 2having a dovetailed upright groove 3 formed therein near each of itsfront and rear ends and by preference forward and backward of thecutting blade which latter at its edge may stand as close to the side 2as desired. The grooves are open at top and bottom and laterally throughthe side 2, and hence when the guides are not employed the groovescannot readily become clogged with sawdust, or if it accumulates thereinit can easily be shaken out. Into these grooves are fitted guides 4:,preferably counterparts of each other so that they are interchangeable,and each guide consists of a straight bar of a size to closely yetadjustably fill the groove, having a flat outer face which will standflush with the side 2 of the plane and a flat inner face which willstand at right angles to the sole 9 of the plane, and rounded ends 5. Inlength the bar is preferably such that when in place it will projectboth above and below the plane body as shown; and it may be adjusted inits groove so that its lower end will stand above the sole when itspresence will not interfere with the ordinary use of the Specificationof Letters Patent.

Patented Feb. is, 1910.

Serial N0. 406,911.

plane, or so that its lower end will project below the sole more or lesswhen it may be employed as a guide to hold the plane on the edge of aboard or on its side adjacent,

its edge. Obviously one or both guides may be withdrawn entirely; or,when one is used and the other raised or withdrawn, one end of the planewill be guided along the board and the other may be deflected from theline of travel so as to produce a shearing action of the cutting bladewhich then stands slightly oblique. Finally, either or both of theguides 4 when projected below the sole 9 stand at right angles theretoand may be used for squaring work as will be understood; and a planehaving one or more of these guides will not dull its blade if thrownupon the bench, because the lower end of the guide holds the soleelevated.

In connection with the guides, I prefer to employ keepers as shown.These consist each of a straight bar much like the bar of each guideexcept that it is preferably rectangular in cross section, and the twokeepers 6 are also counterparts of each other. Each stands across onegroove at about the center of its vertical length and is secured flat tothe side face 2 of the plane parallel with the sole 9. The keepers arein alinement with each other longitudinally, and hence their flat outerfaces will constitute a side gage to hold the plane at a uniformdistance from an upright along which planing is to be done, and theirfiat lower edges will constitute a supplemental sole to limit the depthto which the cutting of the plane may proceed. These keepers stand onlyacross the midlength of the upright grooves, and hence sawdust in thelatter may be easily dislodged as by tapping the plane against thebench.

By preference the keepers are attached to the plane by screws 7 havingcountersunk heads as shown so that the fiat outer face of the keepers isnot interrupted. Such means of attachment renders the keepers removablewhen desired, yet without detracting from their function just set forth.By preference also a set screw 8 is passed inward through a threadedhole at about the center of each keeper and its inner end bears flatagainst the outer face of the guide beneath, whereby the latter ispositively held against movement in its groove and is still capable ofadjustment by first loosening the set screw. The threaded hole throughthe keeper is open at both ends when the screw 8 is removed, and sawdustcan be easily dislodged therefrom; and the use of the set screws istherefore useful though not absolutely necessary. In the completedevice, I prefer to employ all these attachments and sell them with theplane as illustrated; but with proper use they provide the plane with aguide, a side gage, a supplemental sole, and a square, and it is evenpossible to use the plane with a shear cut as above set forth.

Having thus described the invention, what is claimed as new, is

1. A plane provided in one side near its front and rear ends withupright dovetailed grooves open at top and bot-tom and laterally throughsaid side; combined with two guides, each consisting of a straight barof a section to fit either groove closely but adjustably and having afiat outer face standing flush with the side of the plane and a Hatinner face standing at right angles to its sole.

2. A plane provided in one side near its front and rear ends withupright dovetailed grooves open at top and bottom and laterally throughsaid side; combined with two guides each consisting of a straight bar ofa section to fill either groove and having a flat outer face flush withthe side of the plane, two keepers each secured across a groove withtheir lower edges parallel with each other and the sole of the plane,and a set screw through each keeper against its guide.

3. A plane provided in one side near its front and rear ends withupright grooves open at top and bottom and laterally through said side;combined with guides each consisting of a straight bar standing in andlonger than said groove and having rounded ends and flat inner and outerfaces, keepers standing in alinement with each other and extendingacross said grooves between the ends of the latter, said keepershavingtheir lower edges parallel with the sole of the plane and their outerfaces parallel with its side, screws removably securing the keepers tothe plane and having countersunk heads, and a set screw through thekeepers against each guide.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM T. WHITEWAY. [1,. s] Witnesses:

WALTER E. Roenns, SARAH VVHITEWAY.

